My husband is on some powerful pain pills ( he does not share with my Yorkie) and at night he sees cardboard people in our bedroom- Well last night Teddy Bear (he sleeps with us) woke up and starting growling (never heard him growl before last night) and barking like crazy for no reason that I could see- He was shaking - And this morning he has been growling and barking like he sees something- I do not see anything- just really funny and weird at the same.